COMPARE · Data as of August 27, 2026
AIZ vs WTM
Verdict: Side-by-side breakdown using the Bull Rankings model. AIZ scored 74.0, WTM scored 80.0 — WTM leads.
Compare another set
AIZ
Assurant, Inc.
62.1Fin
$285.41 · $14.1B
fundamentals as of
Strength gap
12.1
WTM leads
WTM
White Mountains Insurance Group, Ltd.
74.2Fin
$2,127.57 · $5.1B
fundamentals as of
At a glance · who leads each dimension, on the model's own rules
- CheapestWTM4.9x
- Fastest growthWTM+22.5%
Side by side · every name on one set of axes
Growth against the P/E multiple. Up and to the right is cheaper and faster — the quality-growth idea in one picture. Points beyond the axis are pinned to the edge and marked off-scale rather than allowed to compress everything else.
Fundamentals, head-to-head
AIZ
WTM
+7.9%B
Rev
+22.5%A-
13.7xB
P/E
4.9xA
18.3%B+
ROE
20.4%A-
2.31C+
P/B
0.97A-
1.2%C+
Yield
0.1%C
Winner per row is the stronger grade; where grades tie, the better figure breaks it. A true tie or a missing value shows no highlight.
The companies
AIZAssurant, Inc.
Why now
Insurance - Property & Casualty · market cap $14.1b. 6% off the 52-week high of $303.94. 6 sell-side analysts rate this a Strong Buy with a mean 1-yr target of $322.33 (implying +13% upside).
Moat
ROE 18% sits above Buffett's preferred 15% threshold — the equity base is compounding at a rate the market struggles to discount accurately. Financial moat — scale of deposit base / underwriting franchise plus regulatory capital advantages. The largest players compound book value through cycles that erase smaller competitors.
Risk
Regulatory capital risk — stricter capital requirements (CCAR, Basel) can force a dividend cut or a capital raise; the largest banks are most exposed because they're held to the tightest standards.
WTMWhite Mountains Insurance Group, Ltd.
Why now
Insurance - Property & Casualty · market cap $5.1b. 9% off the 52-week high of $2333.00. Revenue growing +23%, comfortably above the S&P median. PEG 0.81 — paying under fair value for the growth rate.
Moat
Net margin 38% is exceptional — pricing-power territory rare outside premium software, branded staples, and specialty pharma. ROE 20% sits above Buffett's preferred 15% threshold — the equity base is compounding at a rate the market struggles to discount accurately. Financial moat — scale of deposit base / underwriting franchise plus regulatory capital advantages. The largest players compound book value through cycles that erase smaller competitors.
Risk
Balance-sheet financial — book value, net interest margin, and credit loss provisions are the lever points; a rates regime change or a deterioration in the loan book moves the stock more than EPS does.
Verdict — model-derived comparison
Generating verdict… typically 5–10 seconds
Not investment advice. The Bull Rankings publishes a quantitative ranking model and accompanying analysis for general informational purposes only. Nothing on this page is a recommendation to buy, sell, or hold any security; nothing is personalized to your circumstances, risk tolerance, or tax situation. Investing carries the risk of loss — invest at your own risk and consider consulting a licensed financial professional before acting on anything you read here. See terms and methodology for full disclosures.